This week marks the 50th celebration of the March on Washington — perhaps you've heard something about it? — and it's a little hard to resist the urge to compare the America of 1963 to 2013, to see how they've diverged.

If you've been to a fancy restaurant, you've probably seen a sommelier — those wine experts who make sure you get the best possible match for your meal. But what if you don't want a chardonnay or pinot? What if you want a nice cold beer?

As thousands gather in Washington over the next week to the mark the 50th anniversary of the March on Washington, you may be moved to look for video of Martin Luther King Jr.'s "I Have a Dream Speech," which he delivered in front of the Lincoln Memorial during that march.